Tag: how long to leave bleach in hair 40 vol

How many levels will 40 volume lift? 40 volume developer (12% peroxide) Serves only for lightening. Up to 8 levels ...

Is 40 Developer too strong? Choose a 30 volume developer when you want a developer that is stronger for a ...

How many levels will 40 volume lift? 40 volume developer (12% peroxide) Serves only for lightening. Up to 8 levels ...